In: Mechanical Engineering
Design an electro-pneumatic circuit to control a double-acting
cylinder via a 5/2 way singlesolenoid valve. The on switch is of
detent type and when actuated, the piston will repeatedly extend
and retract until the switch is released. The length of forward
stroke and the speed of forward and return motion should be
adjustable via roller-limit switches and flow control valves
respectively.
(a) Show pneumatic and electrical circuits for indirect control of
the system described above, i.e. each switch in the circuit
indirectly controls the output components via a dedicated relay.
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(c) Redesign your circuit incorporating non-contact sensing for
piston position detection using three-wire capacitive sensors.